All unpaid service to which the following sections apply is to be performed cumulatively unless the court orders otherwise—
(a) section 194F , subject to subsection (2) of that section;
(b) section 194G , subject to subsection (2) of that section;
(c) section 194H , subject to subsections (2) and (3) of that section;
(d) section 194I , subject to subsections (2) and (3) of that section.